Historical clue formulations

• Kind of bikes for stunt riders — 2023-11-22
• ___ bike — 2021-04-17
• ___ bike — 2018-03-23
• Sport with stunt riding, informally — 2018-02-17
• Big name in stunt bikes — 2011-02-14
• Stunt biker's bike — 2005-05-18
• Brand of racing bikes — 2000-10-29